CN104215465B - Coupling simulation system and method used for vibrating and loading bogie assembly with multi-degree of freedom - Google Patents
Coupling simulation system and method used for vibrating and loading bogie assembly with multi-degree of freedom Download PDFInfo
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- CN104215465B CN104215465B CN201410387755.1A CN201410387755A CN104215465B CN 104215465 B CN104215465 B CN 104215465B CN 201410387755 A CN201410387755 A CN 201410387755A CN 104215465 B CN104215465 B CN 104215465B
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Abstract
The invention belongs to the simulation system and method of bogie of a high-speed train and discloses a coupling simulation system and method used for vibrating and loading a bogie assembly with multi-degree of freedom. A tension and pressure sensor and a displacement sensor are all mounted on servo hydraulic cylinders. An acceleration sensor is mounted on a six-degree-of-freedom excitation teststand. The tension and pressure sensor, the displacement sensor and the acceleration sensor are used for detecting stroke of a rod of the servo hydraulic cylinder, tension or pressure applied on the servo hydraulic cylinder and accelerated speed of the six-degree-of-freedom excitation teststand and feed back to a servo controller through PCI (peripheral component interconnect) 1716 of an AD board. An X-direction excitation hydraulic cylinder, a Y-direction excitation hydraulic cylinder and a Z-direction excitation hydraulic cylinder apply forces to the six-degree-of-freedom excitation teststand to simulate the six-degree-of-freedom movement. An X-direction force loading hydraulic cylinder, a Y-direction force loading hydraulic cylinder and a Z-direction force loading hydraulic cylinder apply forces to a train simulation device to simulate four-degree-of-freedom static and dynamic force loading, which is integrated with the six-degree-of-freedom vibration simulation to form the coupling simulation. The coupling simulation system has the advantages that redundant force and dynamic load interference factors are reduced, true coupling mechanics simulation environment is provided for the bogie of the high-speed train, and true and accurate detection is acquired in the state of the coupling environment.
Description
Technical field
The present invention relates to a kind of high-speed train bogie analog systemss and method, relate in particular to a kind of vibration and load
Multiple degrees of freedom bogie integrated coupled simulation system and method.
Background technology
From after the sixth time speed-raising of railway, " speed-raising " and " increase fortune " to railway interests bring certain economic benefit and
Social benefit, also brings a series of new technical barriers to us simultaneously.Wherein, due to the raising of train running speed, effect
Increase therewith in the dynamic loading between vehicle and track structure so that the vibration between each part gradually aggravates in Vehicular system, this
A little load act on bogie, can drastically influence structural strength and the service life of bogie, therefore, to parameter of bogie
Accurately measured and parameter is optimized significant.However, existing bogie test platform has certain office
Sex-limited, in particular with significantly increasing of system coupling, circuit excitation and pneumatic action, existing testing stand cannot be simulated and be turned
To overall performance under coupling environment for the frame.
Content of the invention
The problem existing for above-mentioned prior art, the invention aims to providing a kind of vibration and loading multiple degrees of freedom
Bogie integrated coupled simulation system and method, is that one kind can be to high-speed train bogie running stability, stability, safety
Property carry out the comprehensive coupled simulation system and method examined.
To achieve these goals, the technical solution used in the present invention is：The integrated coupled simulation of this high-speed train bogie
System includes control system and control method；
Described control system includes six degree of freedom exciter test platform, AD board PCI1716, DA board PCL6126 and multigroup
Servo hydraulic cylinder control system, each group of servo hydraulic cylinder control system all includes vibrator control system and power Loading Control system
System；
Described vibrator control system includes exciting servo hydraulic cylinder, exciting electrohydraulic servo valve, exciting pressure sensing
Device, exciting displacement transducer, exciting acceleration transducer and exciting servo controller；Exciting electro-hydraulic servo in exciter system
Valve is arranged on exciting servo hydraulic cylinder, and exciting pull pressure sensor one end is connected with hydraulic cylinder cylinder rod, the other end with hinged
Seat connects, and exciting acceleration transducer is arranged on six degree of freedom exciter test platform, and exciting displacement transducer passes through bolt one end
It is connected with exciting servo hydraulic cylinder cylinder barrel, the other end is connected with cylinder rod；
Described power Loading Control System includes power and loads servo hydraulic cylinder, power loading electrohydraulic servo valve, power loading tension and compression
Force transducer, power load deflection sensor and power load servo controller；Power in force loading system loads electrohydraulic servo valve peace
The power that is contained in loads on servo hydraulic cylinder, and power is loaded pull pressure sensor one end and is connected with power loading servo hydraulic cylinder cylinder rod, another
End is connected with pivoting support, and power load deflection sensor is passed through bolt one end and is connected with power loading servo hydraulic cylinder cylinder barrel, another
End loads servo hydraulic cylinder cylinder rod with power and is connected；Power in power Loading Control System loads servo hydraulic cylinder, power loads electro-hydraulic watching
Take valve, power loads pull pressure sensor, power load deflection sensor and power and loads in servo controller and vibrator control system
Exciting servo hydraulic cylinder, exciting electrohydraulic servo valve, exciting pull pressure sensor, exciting displacement transducer, exciting acceleration pass
Sensor is identical respectively with exciting servo controller；Power load the outfan of servo controller and input respectively with PCL6126 plate
Card and PCI1716 board connect, realize exciting electrohydraulic servo valve and power are loaded electrohydraulic servo valve control and each sensor
The collection of signal, realizes the control to exciting control system and power Loading Control System.
Described exciting servo hydraulic cylinder is connected with counter force wall by hinged-support one end, the exciting of the other end and six degree of freedom
Testing stand connects；Horizontal force is loaded servo hydraulic cylinder and is connected with counter force wall by hinged-support one end, and the other end is filled with car body simulation
Put connection；Vertical force is loaded servo hydraulic cylinder and is connected with portal frame by hinged-support one end, and the other end is with car body analog even
Connect；Six degree of freedom exciter test platform is connected with 8 exciting servo hydraulic cylinders, and is loaded by 8 exciting servo hydraulic cylinders, car body
Analog is connected with 6 power loading hydraulic cylinders, and is loaded by 6 power loading hydraulic cylinders；Car body analog and six is freely
There are high-speed train bogie, high-speed train bogie and car body analog and the examination of six degree of freedom exciting between degree exciter test platform
Test platform to be bolted.
8 described exciting servo hydraulic cylinders are respectively：Z one direction has 4 exciting servo hydraulic cylinders, X and Y one direction is each
Two exciting servo hydraulic cylinders；6 described power loading hydraulic cylinders are respectively：Z-direction is two power loading hydraulic cylinders, X and Y side
To each to top two power loading hydraulic cylinders of arrangement.
Described AD board PCI1716 and DA board PCL6126 carries out data communication；Exciting pull pressure sensor, power add
Correspondence is fixed on 8 exciting servo-hydraulics respectively to carry pull pressure sensor, exciting displacement transducer and power load deflection sensor
Cylinder and 6 power load on servo hydraulic cylinder, and exciting acceleration transducer is fixed on 8 exciting servo hydraulic cylinders, carries out signal and adopts
Collection；Exciting displacement transducer, power load deflection sensor, exciting pull pressure sensor, power load pull pressure sensor and exciting
Acceleration transducer is connected with the input of AD board PCI1716, and the outfan of AD board PCI1716 is with servo controller even
Connect, the outfan of servo controller is connected with the input of DA board PCL6126, the outfan of DA board PCL6126 with electro-hydraulic
Servo valve connects；Sensor signal is sent to each board by cable, and board is arranged in the industrial computer of servo-control system；Institute
The servo controller stated is exciting servo controller and power loads servo controller.
Using above-mentioned vibration and the integrated coupled simulation method loading multiple degrees of freedom bogie integrated coupled simulation system, bag
Include following steps：
One：The combination coupling environment analogue signal of given six-degree of freedom vibration and four-degree-of-freedom loading, according to coupling environment
Mechanism of production obtains desired coupling environment analogue signal, couples the coupling through overcoupling coordinated control system for the environment analogue signal
Simulation tuning controller and coupled simulation control split-matrix to be vibrated and power drive signal；Vibration signal controls system through exciting
System processes the electrohydraulic servo valve being transferred to exciting servo hydraulic cylinder, drives servo hydraulic cylinder to act on six degree of freedom exciter test
Platform；Power drive signal processes, through power Loading Control System, the electrohydraulic servo valve being transferred to power loading hydraulic cylinder, drives servo-hydraulic
Cylinder acts on car body analog；Described six-degree of freedom vibration refers to six degree of freedom exciter test platform in 8 exciting servo-hydraulics
X, Y, Z axis direction and the vibration around X, Y, Z axis direction six-freedom degree is realized in the presence of cylinder；Four-degree-of-freedom loads and refers to car body
X, Y, Z axis direction realized in the presence of 6 power loading hydraulic cylinders by analog and the power around four degree of freedom of Y direction adds
Carry；
Two：Six degree of freedom exciter test platform realize in the presence of 8 exciting servo hydraulic cylinders X, Y, Z axis direction and around X,
Y, the vibration of Z-direction six-freedom degree, because high-speed train bogie is connected with six degree of freedom exciter test platform, can be to height
Fast train bogie carries out six-degree of freedom vibration simulation；Car body analog realize in the presence of 6 power loading hydraulic cylinders X,
Y, Z-direction and the power around four degree of freedom of Y direction load, and servo hydraulic cylinder stops carrying out four-degree-of-freedom static force after loading
Loading simulation, servo hydraulic cylinder keeps that loading force size is constant to carry out four-degree-of-freedom dynamic force loading simulation at the volley, by
It is connected with car body analog in high-speed train bogie, high-speed train bogie can be carried out with four-degree-of-freedom static, dynamic
Power loading simulation；Three's combination forms coupled simulation；
Three：The displacement transducer that is arranged on 8 exciting servo hydraulic cylinders, exciting pull pressure sensor and be arranged on six from
Respectively the displacement of every hydraulic cylinder, tension and compression force signal and six degree of freedom exciting are tried by the acceleration transducer of degree exciter test platform
The acceleration signal testing platform is acquired, and is arranged on displacement transducer and the pressure sensing that 6 power load on servo hydraulic cylinder
Device is acquired to the displacement of every hydraulic cylinder, tension and compression force signal respectively；The signal of exciting servo hydraulic cylinder is through exertin, acceleration
Feed back to Coupling Control Unit tuning controller with displacement freedom synthesis, power loads the signal of servo hydraulic cylinder through exertin degree of freedom
Synthesis feeds back to Coupling Control Unit tuning controller, and vibrator control system and power Loading Control System form closed loop respectively.
Beneficial effect：Due to adopting such scheme, pull pressure sensor, displacement transducer are installed in servo hydraulic cylinder
On, acceleration transducer is arranged on six degree of freedom exciter test platform, respectively detection servo hydraulic cylinder cylinder rod stroke, suffered pulling force
Or pressure size and six degree of freedom exciter test platform acceleration, servo controller is fed back to by AD board PCI 1716.X、Y、Z
The vibration-exciting hydraulic cylinder in direction acts on six degree of freedom exciter test platform, the motion of simulation six-freedom degree；X, Y, the power of Z-direction add
Carrier fluid cylinder pressure acts on car body analog, and simulation four-degree-of-freedom is static, dynamic force loads, and simulates knot with six-degree of freedom vibration
Close, form coupled simulation；This coupled simulation system reduces redundant force and dynamic loading interference factor, eliminates strong jamming coupling phenomenon,
The complicated mechanical environment solving to have coupled characteristic is simulated and evaluation problem, and it is more real to be that high-speed train bogie provides
Interaction Mechanics simulated environment is so as to the state under coupling environment obtains more true, accurately detection.
Because rail vehicle belongs to complicated multi-rigid body, multiple degrees of freedom, multiple coupled dynamic system, between all parts
There is certain interaction and relative motion relation, the bogie that existing testing equipment cannot be realized under car load completion state is each
It is suspension stiffness, gyro rigidity and radial rigidity parameter.The present invention can realize six-degree of freedom vibration simulation, four-degree-of-freedom static state
Coupled simulation and dynamic force loading simulation and three between, can be evaluated and tested to high-speed train bogie comprehensively.
Brief description
Fig. 1 is assembly of the invention structure chart.
Fig. 2 is the hydraulic servo control system schematic diagram of the present invention；
Fig. 3 is control system functional-block diagram of the present invention.
In figure：1st, portal frame；2nd, counter force wall；3rd, ground；4th, X-direction power loads servo hydraulic cylinder；5th, pressure sensing
Device；6th, acceleration transducer；7th, displacement transducer；8th, Z-direction exciting servo hydraulic cylinder；9th, Y-direction power loads servo hydraulic cylinder；
10th, six degree of freedom exciter test platform；11st, high-speed train bogie；12nd, car body analog；13rd, X-direction exciting servo-hydraulic
Cylinder；14th, Z-direction power loads servo hydraulic cylinder；15th, Y-direction exciting servo hydraulic cylinder；16th, servo controller；17th, electro-hydraulic servo
Valve.
Specific embodiment
Embodiment 1：This high-speed train bogie integrated coupled simulation system includes control system and control method；
Described control system includes six degree of freedom exciter test platform, AD board PCI1716, DA board PCL6126 and multigroup
Servo hydraulic cylinder control system, each group of servo hydraulic cylinder control system all includes vibrator control system and power Loading Control system
System；
Described vibrator control system includes exciting servo hydraulic cylinder, exciting electrohydraulic servo valve, exciting pressure sensing
Device, exciting displacement transducer, exciting acceleration transducer and exciting servo controller；Exciting electro-hydraulic servo in exciter system
Valve is arranged on exciting servo hydraulic cylinder, and exciting pull pressure sensor one end is connected with hydraulic cylinder cylinder rod, the other end with hinged
Seat connects, and exciting acceleration transducer is arranged on six degree of freedom exciter test platform, and exciting displacement transducer passes through bolt one end
It is connected with exciting servo hydraulic cylinder cylinder barrel, the other end is connected with cylinder rod；
Described power Loading Control System includes power and loads servo hydraulic cylinder, power loading electrohydraulic servo valve, power loading tension and compression
Force transducer, power load deflection sensor and power load servo controller；Power in force loading system loads electrohydraulic servo valve peace
The power that is contained in loads on servo hydraulic cylinder, and power is loaded pull pressure sensor one end and is connected with power loading servo hydraulic cylinder cylinder rod, another
End is connected with pivoting support, and power load deflection sensor is passed through bolt one end and is connected with power loading servo hydraulic cylinder cylinder barrel, another
End loads servo hydraulic cylinder cylinder rod with power and is connected；Power in power Loading Control System loads servo hydraulic cylinder, power loads electro-hydraulic watching
Take valve, power loads pull pressure sensor, power load deflection sensor and power and loads in servo controller and vibrator control system
Exciting servo hydraulic cylinder, exciting electrohydraulic servo valve, exciting pull pressure sensor, exciting displacement transducer, exciting acceleration pass
Sensor is identical respectively with exciting servo controller；The outfan of exciting servo controller and input, power load servo controller
Outfan and input connect with PCL6126 board and PCI1716 board respectively, realize to exciting electrohydraulic servo valve and Li Jia
Carry the collection controlling with each sensor signal of electrohydraulic servo valve, realize the control to exciting control system and power Loading Control System
System.
Described exciting servo hydraulic cylinder is connected with counter force wall by hinged-support one end, the exciting of the other end and six degree of freedom
Testing stand connects；Horizontal force is loaded servo hydraulic cylinder and is connected with counter force wall by hinged-support one end, and the other end is filled with car body simulation
Put connection；Vertical force is loaded servo hydraulic cylinder and is connected with portal frame by hinged-support one end, and the other end is with car body analog even
Connect；Six degree of freedom exciter test platform is connected with 8 exciting servo hydraulic cylinders, and is loaded by 8 exciting servo hydraulic cylinders, car body
Analog is connected with 6 power loading hydraulic cylinders, and is loaded by 6 power loading hydraulic cylinders；Car body analog and six is freely
There are high-speed train bogie, high-speed train bogie and car body analog and the examination of six degree of freedom exciting between degree exciter test platform
Test platform to be bolted.
8 described exciting servo hydraulic cylinders are respectively：Z one direction has 4 exciting servo hydraulic cylinders, X and Y one direction is each
Two exciting servo hydraulic cylinders；6 described power loading hydraulic cylinders are respectively：Z-direction is two power loading hydraulic cylinders, X and Y side
To each to top two power loading hydraulic cylinders of arrangement.
Described AD board PCI1716 and DA board PCL6126 carries out data communication；Exciting pull pressure sensor, exciting
Displacement transducer is fixed on 8 exciting servo hydraulic cylinders, and power loads pull pressure sensor and power load deflection sensor is fixed
Load on servo hydraulic cylinder in 6 power, exciting acceleration transducer is fixed on 8 exciting servo hydraulic cylinders, carries out signals collecting；
Exciting displacement transducer, power load deflection sensor, exciting pull pressure sensor, power load pull pressure sensor and exciting accelerates
Degree sensor is connected with the input of AD board PCI1716, and the outfan of AD board PCI1716 is connected with servo controller 16,
The outfan of servo controller 16 is connected with the input of DA board PCL6126, and the outfan of DA board PCL6126 is watched with electro-hydraulic
Take valve 17 to connect；Sensor signal is sent to each board by cable, and board is arranged in the industrial computer of servo-control system；Institute
The servo controller 16 stated is exciting servo controller and power loads servo controller.
Described control system includes multigroup servo hydraulic cylinder control system, is divided into vibrator control system and power Loading Control
System.Every group of vibrator control system includes exciting servo hydraulic cylinder, electrohydraulic servo valve 17, pull pressure sensor 5, displacement sensing
Device 7, acceleration transducer 6 and servo controller 16；Described exciting servo hydraulic cylinder is Z-direction exciting servo hydraulic cylinder 8, X
Direction exciting servo hydraulic cylinder 13 and Y-direction exciting servo hydraulic cylinder 15.
Every group of power Loading Control System includes power and loads servo hydraulic cylinder, electrohydraulic servo valve 17, pull pressure sensor 5, position
Displacement sensor 7 and servo controller 16；Described loading servo hydraulic cylinder loads servo hydraulic cylinder 4, Y-direction power for X-direction power
Load servo hydraulic cylinder 9 and Z-direction power loads servo hydraulic cylinder 14.
Described control method, concretely comprises the following steps：
First, give the combination coupling environment analogue signal that six-degree of freedom vibration and four-degree-of-freedom load, according to coupling environment
Mechanism of production obtains desired coupling environment analogue signal, couples the coupling through overcoupling coordinated control system for the environment analogue signal
Simulation tuning controller and coupled simulation control split-matrix to be vibrated and power drive signal；Vibration signal controls system through exciting
System processes the electrohydraulic servo valve being transferred to exciting servo hydraulic cylinder, drives servo hydraulic cylinder to act on six degree of freedom exciter test
Platform；Power drive signal processes, through power Loading Control System, the electrohydraulic servo valve being transferred to power loading hydraulic cylinder, drives servo-hydraulic
Cylinder acts on car body analog；Described six-degree of freedom vibration refers to six degree of freedom exciter test platform in 8 exciting servo-hydraulics
X, Y, Z axis direction and the vibration around X, Y, Z axis direction six-freedom degree is realized in the presence of cylinder；Four-degree-of-freedom loads and refers to car body
X, Y, Z axis direction realized in the presence of 6 power loading hydraulic cylinders by analog and the power around four degree of freedom of Y direction adds
Carry；
2nd, six degree of freedom exciter test platform realize in the presence of 8 exciting servo hydraulic cylinders X, Y, Z axis direction and around X,
Y, the vibration of Z-direction six-freedom degree, because high-speed train bogie is connected with six degree of freedom exciter test platform, can be to height
Fast train bogie carries out six-degree of freedom vibration simulation；Car body analog realize in the presence of 6 power loading hydraulic cylinders X,
Y, Z-direction and the power around four degree of freedom of Y direction load, and servo hydraulic cylinder stops carrying out four-degree-of-freedom static force after loading
Loading simulation, servo hydraulic cylinder keeps that loading force size is constant to carry out four-degree-of-freedom dynamic force loading simulation at the volley, by
It is connected with car body analog in high-speed train bogie, high-speed train bogie can be carried out with four-degree-of-freedom static, dynamic
Power loading simulation；Three's combination forms coupled simulation；
3rd, the displacement transducer that is arranged on 8 exciting servo hydraulic cylinders, exciting pull pressure sensor and be arranged on six from
By degree exciter test platform exciting acceleration transducer respectively to the displacement of every exciting servo hydraulic cylinder, tension and compression force signal and six
The acceleration signal of degree of freedom exciter test platform is acquired, and is arranged on 6 power and loads the power load deflection on servo hydraulic cylinder
Sensor and power load pull pressure sensor and respectively the displacement of every hydraulic cylinder, tension and compression force signal are acquired.Exciting servo
The signal of hydraulic cylinder feeds back to Coupling Control Unit tuning controller through the synthesis of exertin, acceleration and displacement freedom, and power loads and watches
The signal taking hydraulic cylinder feeds back to Coupling Control Unit tuning controller, vibrator control system and Li Jia through the synthesis of exertin degree of freedom
Borne control system forms closed loop respectively.
As shown in figure 1, the present invention's is turned to based on the bullet train of six-degree of freedom vibration simulation and multichannel synchro-loading
Frame integrated coupled simulation system mainly loads servo hydraulic cylinder 4, pressure by portal frame 1, counter force wall 2, ground 3, X-direction power
Sensor 5, acceleration transducer 6, displacement transducer 7, Z-direction exciting servo hydraulic cylinder 8, Y-direction power load servo-hydraulic
Cylinder 9, six degree of freedom exciter test platform 10, high-speed train bogie 11, car body analog 12, X-direction exciting servo hydraulic cylinder
13rd, Z-direction power loads servo hydraulic cylinder 14, Y-direction exciting servo hydraulic cylinder 15, servo controller 16, electrohydraulic servo valve 17
Constitute.Pull pressure sensor 5, acceleration transducer 6, displacement transducer 7 are installed on servo hydraulic cylinder, detect servo respectively
The hydraulic cylinder throw of lever, suffered pulling force or pressure size and acceleration, feed back to servo controller by AD board PCI 1716
16.X, Y, the vibration-exciting hydraulic cylinder of Z-direction act on six degree of freedom exciter test platform 10, the motion of simulation six-freedom degree；X、Y、Z
The power loading hydraulic cylinder in direction acts on car body analog 12, and simulation four-degree-of-freedom is static, dynamic force loads, with six degree of freedom
Vibration simulation combines, and forms coupled simulation.High-speed train bogie 11 is located at six degree of freedom exciter test platform 10 and car body simulation
Between device 12.
Claims (3)
1. a kind of vibration and loading multiple degrees of freedom bogie integrated coupled simulation system, is characterized in that：Including six degree of freedom exciting
Testing stand, AD board PCI1716, DA board PCL6126 and multigroup servo hydraulic cylinder control system, each group of servo hydraulic cylinder control
System processed all includes vibrator control system and power Loading Control System；
Described vibrator control system includes exciting servo hydraulic cylinder, exciting electrohydraulic servo valve, exciting pull pressure sensor, swashs
Shake displacement transducer, exciting acceleration transducer and exciting servo controller；Exciting electro-hydraulic servo in vibrator control system
Valve is arranged on exciting servo hydraulic cylinder, and exciting pull pressure sensor one end is connected with exciting servo hydraulic cylinder cylinder rod, the other end
It is connected with pivoting support, exciting acceleration transducer is arranged on six degree of freedom exciter test platform, and exciting displacement transducer passes through
Bolt one end is connected with exciting servo hydraulic cylinder cylinder barrel, and the other end is connected with exciting servo hydraulic cylinder cylinder rod；
Described power Loading Control System includes power and loads servo hydraulic cylinder, power loading electrohydraulic servo valve, power loading pressure biography
Sensor, power load deflection sensor and power load servo controller；Power in power Loading Control System loads electrohydraulic servo valve peace
The power that is contained in loads on servo hydraulic cylinder, and power is loaded pull pressure sensor one end and is connected with power loading servo hydraulic cylinder cylinder rod, another
End is connected with pivoting support, and power load deflection sensor is passed through bolt one end and is connected with power loading servo hydraulic cylinder cylinder barrel, another
End loads servo hydraulic cylinder cylinder rod with power and is connected；Power in power Loading Control System loads servo hydraulic cylinder, power loads electro-hydraulic watching
Take valve, power loads pull pressure sensor, power load deflection sensor and power and loads in servo controller and vibrator control system
Exciting servo hydraulic cylinder, exciting electrohydraulic servo valve, exciting pull pressure sensor, exciting displacement transducer and exciting SERVO CONTROL
Device is identical respectively；The outfan of exciting servo controller and input, the outfan of power loading servo controller and input divide
Do not connect with DA board PCL6126 and AD board PCI1716, realize loading electrohydraulic servo valve to exciting electrohydraulic servo valve and power
Control the collection with each sensor signal, realize the control to vibrator control system and power Loading Control System.
2. a kind of vibration according to claim 1 and loading multiple degrees of freedom bogie integrated coupled simulation system, its feature
It is：Described exciting servo hydraulic cylinder is connected with counter force wall by hinged-support one end, the other end and six degree of freedom exciter test platform
Connect；Horizontal force is loaded servo hydraulic cylinder and is connected with counter force wall by hinged-support one end, and the other end is connected with car body analog；
Vertical force is loaded servo hydraulic cylinder and is connected with portal frame by hinged-support one end, and the other end is connected with car body analog；Six certainly
It is connected with 8 exciting servo hydraulic cylinders by degree exciter test platform, and loaded by 8 exciting servo hydraulic cylinders, car body simulation dress
Put and be connected with 6 power loading servo hydraulic cylinders, and load servo hydraulic cylinders by 6 power and load；Car body analog and six is certainly
There are high-speed train bogie, high-speed train bogie and car body analog and six degree of freedom exciting by between degree exciter test platform
Testing stand is bolted；
8 described exciting servo hydraulic cylinders are respectively：Z one direction has 4 exciting servo hydraulic cylinders, each two of X and Y one direction
Exciting servo hydraulic cylinder；6 described power load servo hydraulic cylinder and are respectively：Z-direction is that two power load servo hydraulic cylinder, X
Each with Y-direction servo hydraulic cylinders are loaded to top two power of arrangement；
Described AD board PCI1716 and DA board PCL6126 carries out data communication；Exciting pull pressure sensor, power load and draw
Correspondence is fixed on 8 exciting servo hydraulic cylinders and 6 respectively for pressure transducer, exciting displacement transducer and power load deflection sensor
Power loads on servo hydraulic cylinder, and exciting acceleration transducer is fixed on 8 exciting servo hydraulic cylinders, carries out signals collecting；Swash
Shake displacement transducer, power load deflection sensor, exciting pull pressure sensor, power loading pull pressure sensor and exciting acceleration
Sensor is connected with the input of AD board PCI1716, the outfan of AD board PCI1716 and servo controller（16）Connect,
Servo controller（16）Outfan be connected with the input of DA board PCL6126, the outfan of DA board PCL6126 and exciting
Electrohydraulic servo valve and power load electrohydraulic servo valve and connect；Sensor signal is sent to each AD board PCI1716, AD plate by cable
Card PCI1716 and DA board PCL6126 is arranged in the industrial computer of servo hydraulic cylinder control system；Described servo controller
（16）It is exciting servo controller and power loading servo controller.
3. a kind of vibration as claimed in claim 1 and integrated coupling theing load multiple degrees of freedom bogie integrated coupled simulation system
Analogy method, is characterized in that：Step is as follows：
One：The combination coupling environment analogue signal of given six-degree of freedom vibration and four-degree-of-freedom loading, produces according to coupling environment
Mechanism obtains desired coupling environment analogue signal, couples the coupled simulation through overcoupling coordinated control system for the environment analogue signal
Tuning controller and coupled simulation control split-matrix to be vibrated and power drive signal；Vibration signal is through vibrator control system
Process the exciting electrohydraulic servo valve being transferred to exciting servo hydraulic cylinder, drive exciting servo hydraulic cylinder to act on six degree of freedom exciting
Testing stand；Power drive signal processes, through power Loading Control System, the power loading electro-hydraulic servo that the power that is transferred to loads servo hydraulic cylinder
Valve, driving force loads servo hydraulic cylinder and acts on car body analog；Described six-degree of freedom vibration refers to that six degree of freedom exciting tries
Test platform and realize X, Y, Z axis direction and shaking around X, Y, Z axis direction six-freedom degree in the presence of 8 exciting servo hydraulic cylinders
Dynamic；Four-degree-of-freedom load refer to car body analog realize in the presence of 6 power load servo hydraulic cylinder X, Y, Z axis direction and
Power around four degree of freedom of Y direction loads；
Two：Six degree of freedom exciter test platform realizes X, Y, Z axis direction and around X, Y, Z in the presence of 8 exciting servo hydraulic cylinders
The vibration of direction of principal axis six-freedom degree, because high-speed train bogie is connected with six degree of freedom exciter test platform, can be at a high speed
Train bogie carries out six-degree of freedom vibration simulation；Car body analog is realized in the presence of 6 power load servo hydraulic cylinder
X, Y, Z axis direction and the power around four degree of freedom of Y direction load, and power loads after servo hydraulic cylinder loads and stops, and carries out four selfs
By degree static force loading simulation, power loads servo hydraulic cylinder and keeps the constant four-degree-of-freedom that can carry out of loading force size to move at the volley
State power loading simulation, because high-speed train bogie is connected with car body analog, can carry out four to high-speed train bogie
Degree of freedom is static, dynamic force loading simulation；Three's combination forms coupled simulation；
Three：The exciting displacement transducer that is arranged on 8 exciting servo hydraulic cylinders, exciting pull pressure sensor and be arranged on six from
By degree exciter test platform exciting acceleration transducer respectively to the displacement of every exciting servo hydraulic cylinder, tension and compression force signal and six
The acceleration signal of degree of freedom exciter test platform is acquired, and is arranged on 6 power and loads the power load deflection on servo hydraulic cylinder
Sensor and power load pull pressure sensor and respectively the displacement of every power loading servo hydraulic cylinder, tension and compression force signal are adopted
Collection；The signal of exciting servo hydraulic cylinder feeds back to coupled simulation tuning controller through the synthesis of exertin, acceleration and displacement freedom,
The signal that power loads servo hydraulic cylinder feeds back to coupled simulation tuning controller, vibrator control system through the synthesis of exertin degree of freedom
Form closed loop with power Loading Control System respectively；
8 described exciting servo hydraulic cylinders are respectively：Z one direction has 4 exciting servo hydraulic cylinders, each two of X and Y one direction
Exciting servo hydraulic cylinder；6 described power load servo hydraulic cylinder and are respectively：Z-direction is that two power load servo hydraulic cylinder, X
Each with Y-direction servo hydraulic cylinders are loaded to top two power of arrangement.
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| CN201410387755.1A CN104215465B (en) | 2014-08-07 | 2014-08-07 | Coupling simulation system and method used for vibrating and loading bogie assembly with multi-degree of freedom |
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| CN201410387755.1A CN104215465B (en) | 2014-08-07 | 2014-08-07 | Coupling simulation system and method used for vibrating and loading bogie assembly with multi-degree of freedom |
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| CN104568478B (en) * | 2015-01-07 | 2017-04-12 | 南车戚墅堰机车车辆工艺研究所有限公司 | Dynamic loading device of railway locomotive drive component |
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